Except as provided in subsection (b), volatile alkyl nitrite shall be considered a banned hazardous product under section 2057 of this title.

(b)

Lawful purposes

For the purposes of section 2057 of this title, it shall not be unlawful for any person to manufacture for sale, offer for sale, distribute in commerce, or import into the United States volatile alkyl nitrites for any commercial purpose or any other purpose approved under the Federal Food, Drug, and Cosmetic Act [21 U.S.C. 301 et seq.].

(c)

“Commercial purpose” defined

For purposes of this section, the term “commercial purpose” means any commercial purpose other than for the production of consumer products containing volatile alkyl nitrites that may be used for inhaling or otherwise introducing volatile alkyl nitrites into the human body for euphoric or physical effects.